Annealing-furnace for cartridge-cases.



No. 643,751. Patented Feb. 20, I900.

P. PDNDORF.

ANNEALING FURNACE FOR CARTRIDGE GASES.

(Application filed Mar. 3, 1899.)

(No Model.)

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UNITED STATES PATENT OFFICE.

PAUL PONDORF, OF GOESSNITZ, GERMANY.

, ANNEALlNG-FURNACE FOR CARTRIDGE-CASES.

SPECIFICATION forming'part of Letters PatentNo. 643,751, dated February 20, 1900.

Application filed March 3, 1899. Serial N01 707,661. (No model.) i

To all whom it may concern:

Be it known that I, PAUL PONDORF, manufacturer, a subject of the Emperor of Germany, residing at Goessnitz, SaXony-Altenburg, German Empire, have invented certain new and useful Improvements in Annealing- Furnaces for Cartridge-Cases; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled-in the art to which it appertains to make and use the same.

This invention relates to apparatus for annealing metallic cartridge-cases; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a vertical section through the apparatus. Fig.2 is a front view of the feed mechanism. Figs. 3 and 3 are respectively detail plan views of the plates 1) and a drawn to a smaller scale. Fig. 4 is a plan view of the apparatus.

A is a stand which supports a stationary plate or support a for supporting the cartridge-cases while being annealed. The plate a is supported in any approved manneras, for instance, by distance-pieces a, inserted between it and the stand. A rotary plate or disk I) is secured on avertical shaft 1), which is journaled in the plate a. A shaft 01 is journaled in the stand A under the'plate a and is driven continuously by a belt pulley f. The shafts b and d are operatively connected together by beveled toothed wheels 0 and 0'; but the plate b may be revolved continuously by any other approved feed mechanism. The

plate a has a discharge-hole a, and the plate b has a series of holes is, arranged in a circle about the shaft 1) and at the same distance from it as the hole a. Aperforated gas-pipe a; is supported above the plate I) and extends around the greater part of its periphery adjacent to the holes 70.

The cartridge-cases q are dropped one by one into the holes It, so that their bases rest on the plate a and their smaller ends project above the plate I) in front of the gas-jets, as shown at the left hand in Fig. 1. The rotary plate 1) moves the cartridge-cases over the plate a, and finally drops them one by one through the holed into the discharge-chute 'y. The smaller ends of the cartridge-cases are heated by the gas-flames, so that their annealing is effected.

The cartridge-cases are fed one by one to the plate I). Afeed-chute g is supported from the plate a by a bracket g and has arms 8 secured to its lower end. A shaft h is journaled in the arms 8 and has a star-wheel h and a ratchet-wheel n secured on it. The wheel h is arranged to one side of the middle of the feed-chute, and Z is a forked rest secured to the bracket 9 and projecting in front of the bottom of the feed-chute on the other side of its middle portion from the starwheel. A conical guidezis secured to the bracket g on the other side of the star-wheel from the rest Z, and the lower orifice of the guide is arranged to register with the holes in the plate b. The star-wheel is revolved step by step, and the cartridge-cases slide down the feed-chute with their bases arranged on the same side as that on which the guide iis located. Each cartridge-case q slides onto the rest Z and is engaged by two of the teeth of the star-wheel, as shown by dotted lines in Fig. 4. When the star-wheel is moved in the direction of the arrow in Fig. 1, it tilts up the lowest cartridge-case, so that it drops through the guide '5 and the hole 10 under it and then rests base downward on the plate a.

The star-wheel is moved step by step by a pawl m, which is pivoted to one end of a lever 0 and which engages with the ratchetwheel. The lever 0 is pivoted on a pin 19, projecting from an arm p, secured to the bracket g. The other end of the lever 0 is provided with a tooth 0 which rests on the plate b, and t is a spring secured to the bracket 9 and to the lever 0,and which operates to hold the tooth o in contact with the plate I).

A series of projections 70' is provided on the plate 5, which engage with the tooth 0' and move the lever 0 in one direction.

The lever 0 is provided with a check-pawl 0 which bears against the ratchet-wheel and prevents it from being turned too far at each stroke of the lever 0.

When the spring t operates the lever 0, the star-wheel tilts a cartridge-case down the guide, and the motion of the plate I) is preferably so timed that at that moment a hole 70 is under the guide ready to receive the cartridge-case.

The cartridge-cases are moved in front of the gas-jets and are discharged by the plate I), as hereinbefore described.

hat I claim is 1. In annealing apparatus, the combination, with a stationary support for the cartridge-cases, of a rotary plate provided with a series of holes for engaging the cartridgecases arranged over the said support, means for revolving the said plate, and a perforated gas-pipe extending circumferentially over the said plate for the greater part of a circle and operating to heat the upper end portions of the cartridge-cases, substantially as set forth.

2. In annealing apparatus, the combination, with a rotary plate provided with holes for engaging with the cartridge-cases, a support for the cases arranged under the rotary plate, and a heater above the rotary plate; of a guide which registers with the said holes, a feed-chute, and feed mechanism arranged at the bottom of the feed-chute and operating to tilt the cartridge-cases so that they drop through the said guide, substantially as set forth.

3. In annealing apparatus, the combination, with a support for the cartridge-cases,

a heater, and a rotary plate provided with holes for engaging with the cartridge-cases, and having projections spaced to correspond with the said holes; of a guide which registers with the said holes, and intermittentlyoperated feed mechanism actuated by the said projections and operating to drop the cartridge-cases into the said guide, substantially as set forth.

4. In annealing apparatus, the combination, with a support for the cartridge-cases, a heater, and a rotary plate provided with holes for engaging with the cartridge-cases; of a guide which registers with the said holes, a feed-chute, a rest at the bottom of the feedchute, a star-wheel journaled at the bottom of the feed-chute between the said rest and guide, and driving devices actuated from the said rotary plate and operating to revolve the star-wheel intermittently, whereby the cartridge-cases are tilted at the bottom of the feed-chute and are dropped one byone through the said guide, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

PAUL PONDORF.

Witnesses:

Orro, KOLBE, FRITZ MERTZ. 

